PFST Technical Data, continued
Electrical Characteristics
1 Hour (R )
1
Max.Time
To Trip
Tripped
Power
Dissipation
Initial
Resistance
I
I
trip
hold
Post-Trip
Resistance
at 5*I
h
V max.
Volts
I max.
Amps
Model
Amperes
at 23°C
Ohms
at 23°C
Ohms
at 23°C
Seconds
at 23°C
Watts
at 23°C
Hold
1.20
1.20
1.50
1.75
1.75
2.00
3.50
4.20
Trip
Min.
Max.
0.160
0.160
0.09
0.09
0.09
0.06
0.031
0.024
Max.
0.22
0.22
0.11
0.120
0.120
0.080
0.040
0.040
PFST.120
PFST.120S
PFST.150
PFST.175
PFST.175S
PFST.200
PFST.350
PFST.420
15
15
15
15
15
30
30
30
100
100
100
100
100
100
100
100
2.7
2.7
3.00
3.8
3.8
4.4
6.3
7.6
0.085
0.085
0.05
0.05
0.05
0.03
0.017
0.012
5.0
5.0
5.0
4.0
4.0
4.0
3.0*
6.0*
1.2
1.2
1.30
1.5
1.5
1.90
2.50
2.90
*Tested at 20.0 Amps
All models packaged loose.
Optional slotted leads (.S) available for 1.20 A and 1.75 A ratings
Thermal Derating Chart - I
(Amps)
hold
Ambient Operating Temperature
-40˚C -20˚C 0˚C 23˚C 40˚C 50˚C 60˚C 70˚C 85˚C
Model
PFST.120
PFST.120S
PFST.150
PFST.175
PFST.175S
PFST.200
PFST.350
PFST.420
1.9
1.9
2.2
2.5
2.5
3.2
5.4
6.4
1.7
1.7
2.0
2.3
2.3
2.8
4.8
5.7
1.5
1.5
1.8
2.0
2.0
2.5
4.3
5.1
1.2
1.2
1.5
1.7
1.7
2.0
3.5
4.2
1.0
1.0
1.3
1.5
1.5
1.7
3.0
3.6
0.9
0.9
1.1
1.3
1.3
1.6
2.8
3.3
0.8
0.8
1.0
1.2
1.2
1.4
2.5
3.0
0.7
0.7
0.9
1.1
1.1
1.2
2.2
2.6
0.5
0.5
0.7
0.9
0.9
0.9
1.7
2.1
How To Order
PF ST.120 . S
Product
Designator
Style
ST = Axial Leaded “Strap” Component
Hold Current, I
120-420 (1.20 Amps - 4.20 Amps)
hold
Slotted Lead Option
(.120S and .175S only)
Schurter’s resettable fuses cross to many like products already on the market.
See our online cross list at www.schurterinc.com/cross.htm
120
Schurter, Inc. Phone 707-778-6311 • Fax 707-778-6401 • E-mail info@schurterinc.com • Website http://www.schurterinc.com
•
SCHURTER [ SCHURTER INC. ]
